Big Tech

Karina Montoya reflects on the end of the remedies phase of the Department of Justice’s case against Google for monopolizing the online search market. She argues that Google’s warnings against divestiture of its browser, Chrome, fall short and that a breakup will benefit the security of the internet, innovation, and users.

Georgios Petropoulos, Geoffrey Parker and Marshall Van Alstyne review what the Meta antitrust case reveals about its merger and acquisition strategy and what lessons...

Joseph Price writes that how the court in the Meta antitrust case determines the relevant product market may have implications for merger activity among television broadcasters, who have similarly argued that the regulators and courts use outdated market definitions to block consolidation.

Regulators worldwide are debating how to rein in Big Tech's dominance over app distribution. Tiffany Tsai and Chuyue Tian explore how Apple’s clash with China’s WeChat complicates standard assumptions about platform competition and what it might mean for the next wave of antitrust enforcement.

The Federal Trade Commission’s case against Meta for monopolizing personal social media through its acquisitions of Instagram and WhatsApp serves as a warning of allowing Big Tech companies to acquire nascent competitors in the artificial intelligence market through quasi-mergers that dodge government scrutiny. Based on new research, Alexandros Kazimirov argues that antitrust agencies can look at a combination of circumstantial evidence, including market product proximity, price premiums and product discontinuation, to help adjust their approach to keep AI markets contestable, rather than trying to restore contestability ten years from now.

A new field experiment sheds light on why Google continues to dominate the search engine market despite regulatory interventions and the availability of alternatives. The authors find that while Google offers higher quality, consumer overestimation of this advantage—along with inattention and default effects—helps entrench its market power and limits the effectiveness of proposed antitrust remedies.

The new Trump administration has thrust antitrust’s role in protecting free speech into the spotlight. Jan Polański discusses how this development should inform the European Union’s own debates about antitrust and free speech.

In new research, Dante Donati and Hortense Fong find that the brief TikTok outage in January benefited Meta as advertisers turned to its platforms to reach users. Small businesses, less able to switch, lost out.

Utsav Gandhi relates recent developments in the American government’s ban on TikTok and shows how the case maps over broader debates about conflicts between...

Steven C. Salop argues that as part of any remedy outcome from the Google Search case, Google cannot be permitted to enter agreements with...